A difference calculation that is used to compute the difference between measure values across a window.
Namespace: DevExpress.DashboardCommon
Assembly: DevExpress.Dashboard.v19.2.Core.dll
public class DifferenceCalculation :
BaseCalculation<DifferenceCalculation>Public Class DifferenceCalculation
Inherits BaseCalculation(Of DifferenceCalculation)To apply a calculation to values of the required measure, perform the following steps.
The code snippet adds a new measure to the Pivot dashboard item and specifies a window calculation to compute the difference between measure values across a window. The calculation is performed along columns of the Pivot dashboard item.
using DevExpress.DashboardCommon;
using DevExpress.DashboardWin;
// ...
PivotDashboardItem pivotItem = dashboardViewer1.Dashboard.Items[pivotItemName] as PivotDashboardItem;
if (pivotItem != null)
{
Measure extendedPrice = new Measure("Extended Price")
{
Name = "Diff",
ShowGrandTotals = false
};
PivotWindowDefinition pivotWindowDefinition = new PivotWindowDefinition();
pivotWindowDefinition.DefinitionMode = PivotWindowDefinitionMode.Columns;
extendedPrice.WindowDefinition = pivotWindowDefinition;
extendedPrice.Calculation = new DifferenceCalculation() { DifferenceType = DifferenceType.Absolute };
pivotItem.Values.Add(extendedPrice);
}
Imports DevExpress.DashboardCommon
Imports DevExpress.DashboardWin
' ...
Dim pivotItem As PivotDashboardItem = TryCast(dashboardViewer1.Dashboard.Items(pivotItemName), PivotDashboardItem)
If pivotItem IsNot Nothing Then
Dim extendedPrice As New Measure("Extended Price") With { _
.Name = "Diff", _
.ShowGrandTotals = False _
}
Dim pivotWindowDefinition As New PivotWindowDefinition()
pivotWindowDefinition.DefinitionMode = PivotWindowDefinitionMode.Columns
extendedPrice.WindowDefinition = pivotWindowDefinition
extendedPrice.Calculation = New DifferenceCalculation() With {.DifferenceType = DifferenceType.Absolute}
pivotItem.Values.Add(extendedPrice)
End If